The price system is a complex network composed of the prices of all the products bought and sold in the economy as well as of a great number of services.
15. To British people, Canadians may sound American. To Americans, they may sound British. Canadians themselves insist on not being identified with _________.
20. Houses in China's big cities are so unreasonably expensive that generally young couples can't afford _______ without their parents' financial support.
25. I would appreciate _________ you could work with us to communicate to the American people ________ there are no more funds available for further improvement of social security.
A . it that, ifB . that, ifC . it if, thatD . if, that